[oha055]

Hi,

I have got this JFrame which contain two JPanels directly on top of each other. The purpose is that when the user clicks the startButton on the top panel, it's going to disappear and the second panel is going to be displayed.

Bu whenever I click the startButton, all thats happening is that the button just freezes, and the JPanel isn't removed. I guess the whole app is freezing...

public class GameController implements ActionListener {

	private JFrame frame;
	private JPanel startPanel, ballPanel;
	private JButton startButton;

	public GameController(GameGUI gameGUI) {

		this.frame = gameGUI.getFrame();
		this.startPanel = gameGUI.getStartPanel();
		this.ballPanel = gameGUI.getBallPanel();
		this.startButton = gameGUI.getStartButton();

		startButton.addActionListener(this);
	}

	@Override
	public void actionPerformed(ActionEvent e) {
		// TODO Auto-generated method stub

		if(e.getSource().equals(startButton)) {

			//frame.remove(startButton);
			frame.remove(startPanel);
		}
	}



}

[macosxnerd101]

Have a look at CardLayout. It already does the work for you. Just set the main JPanel's layout to CardLayout, and use the ActionListener to interact with the CardLayout to flip to the next JPanel.

[oha055]

ah! thanks!

[oha055]

I'm having some trouble using JButtons to change cards though.. have you got any ideas?

Thanks!

[macosxnerd101]

The Sun Tutorial comes with example code illustrating this concept with a JComboBox. They key is that you add the Cards/JPanels using a String as the constraint/identifying key, and you use that same key to show() the other JPanel(s).